Stackable - Wolf Pack Pro Lids have been designed to maximize storage space in your garage| attic| or storage cupboard thanks to the way they conveniently and securely stack on top of each other. These load boxes feature an ingenious ‘nesting’ design which means the top box fits snugly into the lid of the box below. Impact Resistant Plastic - Wolf Pack Pro lids are made from the same impact-resistant plastic as the Wolf Pack Pro making them ultra-durable. They have been tested in the most extreme expedition conditions so when used at home you can have complete peace of mind that your stored items are secure and the load box will last. Suitable for exterior storage - Trusted by overland drivers around the world| these heavy-duty storage bins can be used to store valuable items at home whether indoors or outside. Versatile - Store anything from seasonal clothes| shoes| and sneakers to kitchen items and children’s toys to tools and camping gear in these versatile load bins. Use in conjunction with RRAC257 as well as RRAC129 for a safe and secure storage solution.