[Product description] 

Attachment is simple: pass the end of the elastic through and secure it. To remove, cut the elastic with scissors.
For safety, the name can be hidden by flipping it inside out.
The elastic string stretches moderately to fit where needed and is water-resistant.
Includes 12 patterned stickers and 8 plain stickers, 20 pieces in total.

[ Size / Quantity ]
Diameter 17mm × 4 pieces
12 patterned stickers, 8 plain stickers, total 20 pieces