The 7 Piece container set from LocknLock is waterproof and 100% airtight, this storage set keeps all your essential items together. They can be stacked together perfectly for ideal storage, the flexible silicone seal guarantees that they are airtight and the 4 clip fasteners are patented and guaranteed for life.7 Piece Container Set FeaturesLocknLock 7 Piece Container Set1 box of 232 x 165 x 162 mm; 2 boxes of 205 x 134 x 52 mm; 2 boxes of 135 x 102 x 52 mm; 1 box with diameter 101 x 44 mm; 1 box with diameter 89 x 43 mmStack together100% airtightWaterproofBPA free4 clip patented fastenersSilicone sealFlat lidsLockNLock\'s Ref.MPN: HPL829SF07Colour: ClearSizes: 7 PiecePM Ref: 2102480