... customer's design ok5. a. small model, 22cm, diameter is 7cm b. middle model, 23.5cm, diameter is 7.5cm ... c. large model, 24.5cm, diameter is 8cm d. common model. 21cm,we also welcome our ... customers 's designer, WE CAN MAKE MOULD FOR YOU FOR YOUR CHECKING newest ... competitive Sleeve holder/armband/arm ring