Reggae plastic hair extension ring $ 4.26 Explanation: Specifications: Resin material, wear resistant. Easy to use and remove Material: resin Color: transparent Size: about 1.1 cm * 1 cm Inner hole size: about 6mm 1 inch = 2.54 cm Note: Please allow 0.1-0.3 cm differences due to manual measurement, thanks. Please understand because of the light irradiation or computer screen difference, so I can not guarantee photos and the real color is 100% the same.