Lacrosse balls: massage-ball SKU, not a youth-sports roster

Seedance the ball you sell for myofascial work. Club /for is the roster. Overlay durometer. Do not generate a player or a clinician.

A lacrosse-ball listing that ships is this sphere: diameter, colourway, the mould line, the Shore figure you actually print. That ball is sold as a myofascial tool. It is not a youth-sports highlight. Photograph the ball. Animate the ball. Type the durometer. Leave the roster and the clinic off the plate.

The ball you sell is the myofascial SKU

Retail already has a jpeg. That file is the product. If the colour, the mould seam, or the printed hardness is wrong, every second of video is a mis-ship.

Text-to-video of “an athlete rolling a lacrosse ball on a sunlit gym floor” re-decides the SKU. It will pick a cousin colour, grow a logo, and invent a body. A massage listing cannot survive a generated person demonstrating pressure on a joint.

The AI product video generator is the contract: reference photos are the ground truth. Zoom to 100% on the pack shot before you keep a take. Prompt only the camera: a slow orbit that keeps the mould line readable. Do not prompt “cinematic PT session, tight IT band.” That paragraph restages the SKU as a treatment. If the still is a studio ball on seamless, keep the studio. Do not invent a calf as the landing.

Seedance the photographed ball

Image-to-video starts from the frame you upload. Frame one is the file. Prompt camera and physics: a slow roll on the table, light on the rubber, a hold. Re-describing the ball is how the model draws a second sphere.

Seedance 2.5 is the still-to-motion family: four to thirty seconds, native audio, 720p, 47 credits listed. I2V is the still-to-motion job on that family. The published URL is this slug, not a second Seedance path. Thirty seconds in one pass is why this family holds a SKU. Stitching four short clips around a mould line is how the colourway jumps.

Native audio is on. Write the mix (a quiet table, rubber on wood, no speech) or you will get a soundtrack you did not choose. Quoted Shore numbers do not become a title card. Iterate at 4s or 5s until the ball holds. A five-second orbit that keeps the seam is an ad. A thirty-second wander that grows a foot is a reroll. Do not ask Seedance to letter the durometer on the rubber.

Club /for is the roster, not this leftover ball

Youth sports clubs already have an audience surface: teams, seasons, family trust, real training-ground footage. That page is explicit about safeguarding. Written parental consent. No identifying kids in captions. A generated child on a lacrosse ad is a minor you did not cast. Do not. Empty product. Real footage of a session you have grants for, on a different day, or no people.

This listing is not that page rewritten. The club sells a season. You sell a ball for tissue work. Copying locker-room film ideas onto a massage SKU is how a catalog still becomes a youth-sports commercial you cannot show. Do not prompt “U14 attackman rolling out after practice.” Do not I2V a field still that already has identifiable kids. Name the difference. Do not rewrite /for.

If the brief contains “durometer” and “myofascial,” you are on this ball. If it contains “roster,” “tryout,” or “season,” you are on the club page.

Overlay durometer. Do not generate a clinician.

Durometer is a claim. Shore A 40, 60, 80 — those digits are why a buyer opens the listing. A 60 that becomes a 90 for six frames is a mis-ship. Video models redraw letterforms every frame. Hardness is type you typed, or letters already on the photographed ball.

Add a text overlay burns one authored line for the whole clip — top, center, or bottom. That is the Shore figure, a CTA, “massage ball.” It does not transcribe. Overlay after picture lock. Swap Shore A 60 for the next SKU without regenerating the rubber.

A constructed clinician walking trigger-point protocol is a photoreal talking presenter on health: a YPP kill. Labelling the face AI does not leave the bucket. Do not generate a PT rolling the ball on a generated hamstring. Do not generate a player either. If a named product person must speak, that person is real, on a different day. The listing still does not need a mouth.

Pause on the seam. If a buyer would not match it to the PDP, you made a roster film. Leave the field to the club.

FAQ

Can I generate a PT rolling the ball if I disclose that they are AI?

No. Disclosure does not move a video out of YouTube’s inauthentic-content bucket. A constructed clinician giving health information is still that pattern. Overlay durometer. Keep the body off this plate.

Why not text-to-video of a lacrosse game and crop to the ball?

Because the game invents a roster and the ball will drift. Upload the product photo and describe only the camera. Seedance 2.5 I2V from that still is the hold: 4s–30s, 720p, 47 credits, native audio, one pass.

Is the youth-sports /for page the right playbook for massage-ball ads?

No. Youth sports clubs is teams, seasons, and safeguarding. This page is a myofascial SKU: the ball you photographed, durometer as overlay. Copying their locker-room calendar is how you get a generated child and a cousin colourway.

Where does Shore hardness go if it cannot be in the prompt?

Type it. Overlay after picture lock. If the still already letters a sharp, real figure on the ball you ship, keep it. Do not “enhance” the stamp. Prettier digits are a different hardness.