Description Overview Used for fixing the surface of the fabric to the spring wall, plastic, and buckle joint of pocket springs of mattresses and sofas. Specifications Air pressure: 0.55 mpa to 0.8 mpa. Available models: 22 series and 14 series. 22 Series Crown: 21.7 mm. Height: 12 mm. Gauge: 15 mm. 14 Series Crown: 13.5 mm. Height: 7.4 mm. Gauge: 17 mm. Additional Information More information is available upon request.