This is an umbrella marker that can be used as a distinguishing mark for your umbrella. Since it is completely original and handmade, I don't think you'll have to worry about it matching your friends' umbrellas(^^) The size of the ring is: Inner diameter: 15.8 cm Outer diameter: 20.6 cm Thickness: 2.4 cm If the handle of your umbrella is thin, it might be loose, so please check the size. A strap is also included so you can attach it to other things besides the ring. It can also be used as a marker for plastic bottles, etc.(^^) The color of the ring can be changed (free of charge). Please feel free to consult us in the comments(^^) Except for items specifically marked otherwise, all multiple purchases will receive a 100 yen discount on the second item and subsequent items(^^) Example) 300 yen + 300 yen + 300 yen = 900 yen 100 yen x 2 = 200 yen discount Amount to pay: 700 yen! Please feel free to ask any questions you may have! Keychain Vinyl umbrella Point redemption Preparation for school entrance Preparation for kindergarten entrance Umbrella marker Umbrella charm Nameplate Umbrella Marker Bindundun Panda-chan PANDA-chan