I purchased the Crow seat belts for my rV7a, this is what I speced. I believe the #1112 was the model. You have a choice of 2 inch or 3 inch belts. I wanted 2 inch. The standard belts are 50 inches, I asked for 54 inches across waist. Hope this helps.
50" BELTS: ROTARY KAM LOCK
? Rotary Kam Lock 5-Way Driver Restraint.
? 50" Seat Belt Bolt In.
? Pull Down Adjustment.
? Vee-Type Harness Bolt In.
? Anti-Submarine Belt Bolt In.
#1112
With 54 inch across waist belts, 2 inch wide belts, grey, with 1/4 inch
hardware for use in an RV7a experimental airplane.