General description These 12pcs Tyre Changer Part Nylon Mount Demount Head Duck Head Inserts are designed to protect your tire rims from scratches during tire changes. Made from durable nylon, these rim protectors come in two types to accommodate different rim shapes. Technical specifications Color: Yellow Material: Nylon Type A Length: 54mm, Thickness: 4mm Type B Length: 44mm, Thickness: 4.2mm Measurement allowed error: +/- 1-3 cm Compatibility and accessories Package includes: 18 x Duckhead Tire Changer Head Rim Protectors (Type A) Package includes: 18 x Tire Changer Head Rim Protectors (Type B) Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.