Size & Package You will receive a 16.5x16.5x20.5cm/6.5x6.5x8.1inch clear acrylic helmet display case to store your favourite items. Please check the size before you buy it. Our package will also contain 13 rubbers to help you make the display box more secure and not fall apart during movement.Acrylic Material This assembled display case is made of acrylic which is waterproof and dustproof. It has no pungent smell and its robust and durable, not easily deformed or broken. The display case has smooth surface and its easy to clean. The acrylic material has a high light transmission rate and can clearly display the items you want to exhibit without any visual obstruction.Special Design The bottom of the clear display box is a black acrylic plate, but all the side and top plates are transparent. We also have special protection for the case. Each acrylic panel of the display box has a protective film on the outside which can protect them from scratches.Easy to AssembleIt's very easy to get a new complete protection case. Firstly, you need to remove the protective film from the acrylic panels, then snap each acrylic panel into its corresponding groove on the black base and finally attach the rubbers around the edge of the box where it protrudes. You will then have a new solid acrylic display case.Widely Used This dustproof display box can not only store mini helmets, but also a wide range of your favourite models, toys, statues, collectibles, handicrafts, balls etc. You can use this transparent display case at home or in exhibitions.