Product Instructions 1.Take the clip on the sponge on both sides. 2. Remove the sponge that cleaned the window. 3.Put the Spare sponge into the brush and press. 4. Peel off the rubber strip from one side, and then insert it into the new strip that matches the original road. Whats included 30 * Triangle Sponge 4 * Rubber Strips 30 * Clip 1.Material: Triangle Sponge and Rubber Strips. It is durable and can be washed with water. 2. Powerful Cleaning Sponge: After you put the dish soap into the triangle sponge, the window cleaner can clean better. No scratching of the glass. 3.Rubber strip: When cleaning, the sponge is cleaned at the front of the triangle and the bottom of the rubber strip scrapes off the water. 4.Easy to replace : Take it Clip on the sponge so it can be separated, cleaned clean and replaced. Effective for 4-30/32mm thickness single glazed windows. 5.SuggestIt is recommended to replace the rubber strip and scouring pad of the glass wipe regularly, the cleaning effect will be better.