Heavy duty blade trip springs for all newer (within the last 10-12 years or more) Moose ATV/UTV snowplows. Moose snowplows have a design flaw that allows the blade to trip all the way forward. This can overstretch the springs and they will be permanently uncoiled and useless. Replace them with these excellent quality springs. These are a perfect replacement that will install and work great. Same as the springs that come in the M91-50036 Moose spring kit. Size is 10-1/4" long x 1-5/8" wide. Can probably be used on many other brands of ATV/UTV plows as well. Sold as a PAIR.