Thank you very much for your request. Since you purchased ★GOTOH / GB2-Ni-L4◆ on a separate page, we will ship this ★GOTOH / 203B-4-N◆ together with Letter Pack Plus. Specifications ◆Model Name: 203B-4 ◆Finish (Color): N / Nickel ◆String Pitch: 19mm ◆Brass Saddle ◆Metric Size This is a bridge for a 4-string bass guitar from GOTOH. GOTOH, a Japanese brand known worldwide for its high-quality, premium parts! This "203B" series bridge is a model that improves on the problems seen in Fender bass guitar bridges. It is the standard model of a 7-point bridge, equipped with the most affordable and sufficient functions. For bass guitars, where techniques such as downpicking and slap (chopper) often put excessive impact on the strings, there are problems such as the bridge itself being damaged by the saddle slipping sideways, or the tuning not being stable. This bridge is well-designed to address those points, and you can expect significant improvements easily. The quality of the bridge is also what you would expect from GOTOH, and it is very popular for its dramatic effects, such as extended sustain, increased harmonic content, and clearer sound contours. The pegs, nut, and bridge are the first to transmit the vibrations of the played strings. If you cut corners here, it doesn't matter how good the wood of the body and neck are. Please refer to the GOTOH official website for the screw diameters, etc.