This is a half-size Somnium ToneStorm cartridge that accepts any standard humbucker guitar pickup, active or passive. It has squared off corners and fits vintage pickups like the PAF or most modern humbuckers from EMG, Seymour Duncan, Dimarzio and a great many others. The pickup mounting hole is 2.77" by 1.51" (70.3mm by 38.5mm) with obround screw holes to give you a little wiggle room in case your pickup's mounting tabs have a little variance. "Style 1" means that the hole is positioned to the outside of the cartridge so that when in the bridge position the pickup is closest to the bridge, and in the neck position closest to the neck. This is the most common positioning, but other positions are available.
Our cartridge is made of machined aluminum and stainless steel with mechanical locking pins (no magnets anywhere). Weight is 8.5 oz. (241 g). Installation is solderless with a mini terminal strip for attaching your pickup wires, and a mini screwdriver is included. PLEASE NOTE that a pickup is NOT included; this is an empty cartridge ONLY. Any pickups shown in photos are for example only.