✓ REFUND GUARANTEE -- At Fullgren, we guarantee the quality of our product and provide 30 Days money return. If, for any reason, you are not completely satisfied with your order, please let us know and we'll take care of you. ✓ When applying on 2.5mm size wire end, please make the wire end wet by water, cleanser essence, etc to make the wire less abrasive and more slippy, then it goes into the temple tips easily. ✓ The soft character creates a comfortable feeling when it touches your skin behind the ears. The hole size of these temple sleeve are 2.0mm x 1.0mm size, because of its elasticity, it could hold width sizes from 1.5mm to 2.5mm. ✓ SET OF 6 PAIRS -- Come in black, translucent and Brown. These soft anti slip flat hole eyeglass arm socks are made of imported silicone, unlike Acetate temple tips, it will adjust itself to suit your metal temple. ✓ SILICONE GLASSES END TIPS -- the most popular eyeglass temple tips for replacement because it's supe soft and elasticity that it's not afraid of any directioned bending, the breaking problem doesn't exist.