GOOFIT Chain Breaker #428 520 525 528 530 Chain Tool Dirt Bike Bicycle ATV Thimble dia: 4mm; Effective length: 32mm; Length: 125mm; Width: 100mm This item fits for #428 520 525 528 530 Chain Tool Motorcycle Bike Package: 1 Pcs Arrival within 1-2 days (Sold by GOOFIT and Fulfilled by Amazon) Arrival within 7-15 days (Ships from and sold by GOOFIT)