Create idea 8PCS 25.4mm Open Type Rubber Reducer Shim for 31.8mm Bicycle Handlebar Adapter or Mount Compatible with Bike Computer Mounts Bottle Holders

Precise Dimensions: Rubber reducing spacer size: 31.8x25.4x10mm with an opening of 4-5mm, perfect for 31.8mm handlebars. Compatibility: Designed to adapt 31.8mm bike handlebar accessories such as computer mounts, bottle holders, and light mounts. Versatile Use: Can be used with various bike accessories, ensuring easy fitment and secure attachment. Material: Made from durable rubber, open type design, providing flexibility and easy installation. Conversion Function: Converts 31.8mm handlebar diameter to 25.4mm for adaptable use with multiple mounts.