Belt 1712 v-belt lug Singer 221
A bit more flexible than the original solid v-belts. This is a premium quality lug type v-belt for your Singer 221
Nominal size = 17 1/2" Actual size is 17 1/2" (This is measured using the method at the link below)
HOW TO INSTALL ADJUST and determine the size of a SEWING MACHINE BELT

