Compare Quick view Master Spa Pillow, Master Spa, Gen. Neck Black MSRP: Was: Now: $31.78 Relax. It's Master Spas. Spa Headrest - Master Spa/Generic Black Neck Jet Pillow Starting in 2003. Measurements: Length: 10.0 inches (25.40 cm) x Width: 4.0 inches (10.16 cm) x Depth: 2.0 inches (5.08 cm) Weight: 3.8 oz. Add to Cart Add to Cart