Nautilus Sound Dampening Platform The Nautilus® 4” Stand Alone SVA platform was developed as a way to reduce sound and vibration caused from users dropping barbells while performing Olympic and power lifting. It uses a proprietary blend of materials designed to absorb the force of the barbell. These absorption characteristics not only cut down on sound and vibration, they also reduce bar bounce. W: 95 IN (241 CM) L: 77 IN (196 CM) H: 4 IN (10 CM) STACK WEIGHT: N/A OVERALL WEIGHT: 642 LBS (292 KG) SHIPPING WEIGHT: 642 LBS (292 KG) FOOT PLATFORM: LIFTING AREA – 76.1” x 95” x 4” (193.3 CM x 241.3 CM x 10.2 CM)m) SKU: 9-HDP6D-SA • Nautilus Half Rack insert not included • This is a stand alone platform The Nautilus® SVA platform was developed as a way to reduce sound and vibration caused from users dropping barbells while performing Olympic and power lifting. It uses a proprietary blend of materials designed to absorb the force of the barbell. These absorption characteristics not only cut down on sound and vibration, they also reduce bar bounce. \"