Winterguar is an indoor colorguard activity, derived from the outdoor summer activity that is commonly part of marching band or drum corps. Unlike colorguard, which performs outdoors on a football field (and is part of a marching band or drum corps), winterguard is performed indoors, usually in a gym or indoor arena, during the winter season. Also, there is no band involved. Guards perform to a recording of various musical genres. A winter guard unit performs using dance, acrobatic features, and most of all, with various pieces of equipment. While guard equipment can vary from anything to everything, flags, rifles, and sabres are the main pieces of equipment. Guard members toss, spin, and do much more with their equipment, which can change throughout their show. Major competitions worldwide are sanctioned and managed by Winter Guard International.