3S O-ring with PU leather:
ID:1.188"/1.031"/0.88" (30/26/22mm);
OD:1.68"/1.48"/1.28" (42/37/33mm)Thickness: 6/5.5/5mm
Weight: 4/3/2g, total 14g/set
3 silicone cock rings + PU leather
3L O-ring with PU leather:
ID:1.54"/1.42"/1.30(39/36/33mm);
OD:2.17"/1.97"/1.77"(55/50/45mm)
Thickness: 8/7/6.5mm
Weight: 7/6/5g, total 23g/set
3 silicone cock rings + PU leather