• Suitable for most bicycle chain connectors. • Replace the broken chain connector with these spare parts. • Facilitates chain assembly. • Allows breaking chains without damaging motor mounts and wheel hubs. • Dimensions: 21 x 9 x 10 mm (Length x Width x Height). • Roller pin diameter: 3.5 mm. • Plate thickness: 1 mm. • Material: metal. • Color: gray. • Net weight: 40 g. • Package content: 10 master chain links.