This is a Strawberry Prince (Sutopuri) rubber wristband. It's in Riinu-kun's color, but there are no specific member names or anything written on it.
It might be slightly faded, but it's to the point where if someone said it was originally this color, it wouldn't feel strange.
It was worn once at a live event and then stored in a dark place.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.
The product arrived on time and in good condition. It matches the description provided and seems to be of decent quality. So far, I am satisfied with the purchase.