Individual utensils in this set have several holes punched out of the handle to reduce weight * Bottom hole on handle is hexagonal shaped; each piece is a different size hex wrench (3mm, 4mm, 5mm). * Thicker, sturdier handles than the AlphaLight series, but are still very lightweight. * All pieces come with a mini carabiner * Ultra light, strong 7075-T6 aircraft aluminum alloy