Silirings are round, solid, silicone bands. They have no seams and are quite economical (15 to the pack). Silirings may be combined with the Silibands and are slightly smaller in circumference, so would be better on the smaller lines available today. Availability: Usually ships the next business day SILIRINGS 9090123$9.75 Size: 1 (5/8inch ID + 7/8inch OD)2 (13/16inch ID + 1 3/16inch OD)3 (15/16inch ID + 1 5/16inch OD) Our prices include GROUND SHIPPING in the US. Come back and get a GOOD GUY DISCOUNT on qualifying orders. Toll Free Orders: 888.535.5680 Email:unfeathered@bellsouth.net