Dunweedin' playground rubber chippings are made from recycled aircraft and agricultural tyres and are 100% wire free - guaranteed. Available in 10 kg bags, minimum order 20 bags -Rubber chippings will not biodegrade or compact after years of use and are therefore recommended as a safer alternative to woodbark -Five wonderful colours are available which are both stain and fade resistant - Dunweedin's playground rubber is completely non-toxic Will not blow away -Freeze resistant -Does not absorb water and dries quickly -Does not attract animals and bugs HOW TO USE 1) Make a pit or frame to required size. Ideally treat with weedkiller and then spread a permeable membrane within this area to discourage any future weed or grass growth. 2) Choose your required depth - in many play situations 100mm per square metre will suffice. BS EN 1177:1998 guidelines for impact absorbtion. 3) Spread Dunweedin's playground rubber chippings evenly making sure any rigid framework is well outside the likely area of fall - then let them play!