11. Platform surfaces are usually covered with rubber pads to prevent objects from slipping during operation. 12. It had coil springs ( very hard ) and bottoming coils instead of rubber pads . 13. Soft sponge-rubber pads inside the hood covered the ears and allowed them to be equalised. 14. Sponge rubber pads are available in quarter-inch-and three-eighths-inch thicknesses. 15. In front-- the business end-- is a projecting boom ending in two large rubber pads . 16. The entire structure sits on 3, 000 massive hard-rubber pads to reduce unwanted noise and vibrations. 17. Rubber pads are more expensive than the others.18. Rubber pads are a good compromise between the firm fiber pads and soft ones of synthetic materials.19. Robertson Grant successfully innovated a completely floating space, weighing seventeen tons, which was supported by rubber pads . 20. The " rubber pads " seen in the trucks in place of leaf springs are actually springs themselves.