Description:Design: The wavy design on the surface does not damage the handlebars and stems while increasing friction. Increase riding safety.Function: Bicycle handle gasket reducer converts 25.4mm to 31.8mm/31.8mm to 35mm rod hole adapter. Two types for your choice.Material:Made of lightweight CNC machined aluminum alloy, durable and practical, not easy to be out of shape.Easy Install: Simple and quick Installation, directly buckled in the handlebar installation position.Styling: The surface is anodized, with bright colors and luster, smooth lines, smooth edges, making your bike more cool and fashion.Specification:Material: Aluminum alloyColor: Black, Red, Gold, Silver, BlueTypes: 25.4 To 31.8mm, 31.8mm To 35mmSize(Inner Diameter x Outer Diameter x Height):25.4 To 31.8mm: About 25.4x31.8x41mm/1x1.25x1.61inch31.8mm To 35mm: About 31.8x35x41mm/1.25x1.38x1.61inchQuantity: 1pairPackage includes:1pair x Bike Handle Shim