STEINBERGER made the GL 4 between 1986 and 2001. The GL 4 used Steinberger's one piece reinforced body and headless neck construction. The trademark rectangular body came with a folding leg rest so you could play it sitting down. The fingerboard was made from phenolic resin (a Bakelite type material) with 24 frets and white dot inlays. Scale length with 25.5 inches and the neck width was 1 5/8 inches at the zero fret. Black finish was standard although you could get white as an option. Left handed models were also available as an option.

The GL4T had active electronics with two single coil EMG SA pickups and one EMG 89 pickup. There was a five way pickup selector and a volume and tone control. This guitar featured the innovative Steinberger TransTrem, the first "pitch-bending" tremolo mechanism which permitted individually controllable pitch bend rates for each string, so your chords would stay in tune when using the trem. Tuning was done using Steinberger's headless double-ball micrometer tuning system

Photo from gibson.com