Full Description The MT1440M features the MCS70B butt, which uses the basic butt assembly of the MUS80B but has large, 6mm screws for improved durability. Features/Specifications: Shell: 1.2mm Steel Size: 4" x 14" Hardware: Chrome Hoops: Triple Flanged, 8 Hole Steel Lugs: MSL-SCP Strainer: MCS70A Butt: MCS70B Snappy: MS20R14S