SKB 3R222212BEW Roto Molded Accessory Case 100952540 the answer is

the answer is

Hercules Impact-resistant panels are manufactured from the same high-density (6pcf/96kg/m3) glass wool core as Primacoustic Broadway

Waterproof and dust tight design (MIL-C-4150J)

5" depth (front rail to back flap}

This is innovative design in combination with very modern technology

SKB 3R222212BEW Roto Molded Accessory Case 100952540 the answer isSKB 3R222212BEW Roto Molded Accessory Case These Mil Standard cases were designed to meet the most demanding military specifications, they are roto molded for strength and durability, airtight and water proof with solid stainless steel latches and hinges that will withstand the most demanding shipping conditions. The 3R Mil Std. Cases are molded of (LLDPE) polyethylene impact resistant UV stabilized material and meet or exceed MIL STD 810 and MIL C