Upholstery Pin 3" 75mm (Skewer). Upholstery pins or skewers used for pinning fabric, linings, foam and fibre in place during upholstering furniture items. Two sizes of upholstery pins or skewers are available - 75mm & 100mm. Strong spring steel for long life. Minimum quantity 6 pins or bulk prices in lots of 12+ or 24+ pins.