The park tool bx 2 blue box tool case uses a super tough hdpe plastic shell that is nearly indestructible this is a professional level lockable travel tool case customized to work specifically with bicycle tools each specially designed tool pallet is housed in a super tough dent proof tool case designed and built for daily use park tool bx 2 blue box tool case features a revised version of the original bx 1 tool case that became the gold standard for mechanics that n