Dimensions: Total size is 30 x 30 x 10 mm, screws are included. Please measure the bottom size of your furniture leg before ordering. Special Design: Grip strength is significantly improved by grids on the underside; a built-in metal seal secures the screw firmly in the rubber cushion. Easy Installation: Simply attach the rubber pad with a screw under the furniture leg to complete the assembly. Wide application: The rubber pads are an ideal accessory for home/office. Suitable for sofas, chairs, desks and more. Customer service: Reliable customer service including full refund for quality issues and responsive customer service within 24 hours.