SI (sponge insert) Removable pre-cut foam insert enabling precision customization of the case's interior plus egg crate foam in the lid for full, shock resistant protection. The case shells are made of polypropylene and feature an automatic air pressure compensation valve, a transparent name plate, 2 latches, and 1 padded handle. It can withstand temperatures ranging from -40° up to +80° C, is very sturdy, stackable, dustproof, and watertight. It comes with a 30 years guarantee. Optional accessories include a black name plate, a removable lid, a carrying strap (item no. CS/3000), a lid pocket (item no. LP/3000), and a panel frame (item no. PF/3000). Built for transporting or storing more sensitive equipment, the B&W Type 4000 universal case features a pluck foam interior that can be customised to provide a snug and secure fit. A size-up from the Type 500, this extremely strong case is dust-and-waterproof (IP67) and has been stress-tested to make sure it can withstand knocks, falls and other impacts. Perfect for getting microphones, cameras, lenses and other costly gear around safely.