4 PAIRS 2 STYLES INSOLE: Comes with 8pcs/4 pairs black square non-slip shoe pads with 2 texture styles, 2 pairs/ style, each size about 2.83 *3.19 inch(7.2*8.1cm), you can cut the insole to the desired size according to your shoes QUALITY MATERIAL: The shoe sole protectors pads are made of quality plastic, soft and comfortable, non-slip,durable for long time use, not fade, not easy to fall off, making you walk more stable. NON SLIP & NOISE REDUCTION: The sole protector has a textured surface that enhances the friction between the shoe and the ground, with an excellent non-slip effect; in addition, the thickened design(2.4mm thick) helps reduce walking noise, especially suitable for libraries, offices and other places where quiet is needed. EASY TO USE: Clean the shoes where you need to stick those pads and dry the surface. Then, peel off the adhesive pad and place it on the sole of the shoe and press firmly. Reminder: After attaching the non-slip insole, wait a few hours to make it stick more tightly. WIDE APPLICATION: Noise-reducing non-slip insole is suitable for various scenarios such as work, party, shopping, sunny day, rainy day, etc. It can be used for high heels, leather shoes, sports shoes, canvas shoes, boots, etc.