These pallets hold and organize tools commonly used in mechanical field service applications. Novalux flocked vinyl tool pockets enhances the life of the tool pallets. Top pallet is a high-capacity wing pallet. (Note: Wing pallets will not fit in the RPZ-2 and RPZ-4.) Pallet set by Howe Industries Pallet sizes available: Regular 17” x 12”; Large 17” x 14" Designed for tool case with internal dimensions: Regular - 17.75" x 12.5" and Large - 17.75” x 14.5” *500 has 1/4" and 3/8" socket rails **550 has 1/2" socket rail