Shells 12PCS 360&deg; Reflective Night Safety Spokes Mount Clip Tubes for DIY Decorative Bike Motorbike WheelChair, Silver Color About Shells: concentrate on providing various reliable quality consumer goods with affordable price Fits all standard spokes,easy to install.no tool or glue needed. 8cm / 3.15 inches per one. 360 degrees reflection, perfect for extra safety while riding in the fog, rain, or at night. Lightweight design will not cause any imbalance or wobble while riding. Package including: 12PCS bike motorbike hotwheel reflective spokes.