Pack includes:motor belt and bobbin winding belt Material: nitrile rubber; diameter is 3/16 inch (5mm) Perimeter Ranging From 10"to 13" Please make sure that the perimeter of your required belt ranges from 10'' to 13'', So it is important to measure the perimeter of your original belt before you buy this belt. Compatible with/Replacement for many Singer White domestic sewing machines Easy to install: Just slip over wheel and into place Fbshicung Universal Sewing Machine Belt and Bobbin Winding,Stretchable Motor Belt 10" - 13" Compatible with Singer Kenmore White

Sewing Machine Belts as replacement parts for your motor-driven sewing machines.
Each package contains a motor belt and bobbin winding belt, which are sized to fit most belt-driven sewing machines.
The belts are easy to install, just slip them over the wheel and into place.