ThunderFitSilicone Ring for Men - 1 Ring (Black, 8.5-9 (18.9mm))

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