6, 7, 8 speed universal rainbow color dazzling chain (different colors can be displayed according to the reflection angle of light) with quick release buckle. Domestically and internationally. Large factory products, quality assurance Product Description: Model: F80 Size: 1/2 "x3/32" Thin Chain shaft length: 7.2mm Chain joint strength: 110 kg (standard) Tensile strength: 860 kg (standard) Color: Rainbow color Applicable flywheel pieces: 6 pieces/7 pieces/8 pieces Weight: Approximately 0.32KG Number of sections: 116 sections with quick release buckle (Currently, most 8-speed chains on the market do not have quick release buckles, but this type of chain comes with quick release buckle) Packaging: PVC plastic box individually packaged