ThunderFit Men's Breathable Silicone Ring with Air Flow Groove 10mm Width 2.5mm Thickness

ThunderFit Men's Silicone Rings 10mm Wide 2.5mm Thick Rubber Bands, Breathable,Variety Multipack 1-7

Egnaro Inner Arc Ergonomic Breathable Design, Silicone Rings for Women with half sizes, Women's Silicone Wedding Band，5.5mm Wide-2mm Thick