This is a combo set, include one set of four cylinder gauge and one set of two cylinder gauge

1. four cylinder gauge:

This kit comes with both 5mm and 6mm adapters, will work with all bike models includes Yamaha which requires 6mm adapters (Honda and Suzuki use 5mm adapters, Kawasaki does not need adapters).

It comes with a mold case for easy storage.

This vacuum gauge set features 4 precision gauges. 
Gauge reading: 0-38hg 

Each gauge has its own individual damping control and Calibration Control

Gauges are mounted to a heavy metal base intended for bench top use. 

Dial Diameter: 2-3/4"

Parts included in the Kit:

Contents:

Bracket x 1PC (304x102x20mm)
2-3/4" Gauge x 4pc, brass fitting: 5.5mm
4(ID)x7 (OD)x75CM Rubber hose x4
5.5mm (OD) Valve x 4pc
102mm(M6x1.0) Extension x 2pc
52mm(M6x1.0) Extension x 2pc
52mm(M5x0.8) Extension x 2pc
28mm(M5x0.8) Extension x 2pc

2. Two cylinder gauge

Parts included in the Kit:

1 qty x Bracket
2 qty x 2 & 3/4" Gauges
2 qty x Hoses 4mm(.I.D)x7mm(O.D.)x75cm (L)
2 qty x plastic Valves 5.5mm(O.D.)
1 qty x 180mm(M5xP0.8) Brass Extension
1 qty x 65mm(M5xP0.8) Brass Extension