From top roping classes to projecting secret crags, the Mad Rock Venus Harness 4. 0 Deluxe Climbing Package has the essentials every climber needs whether they're a beginner or not. The Venus 4. 0 is Mad Rock's most technically advanced harness to date, fine-tuned for incredible comfort when you're hanging from a rope. Even the belay device has an innovative design with its removable spring that keeps the device from locking up. No chalk bag is complete without chalk, so Mad Rock filled it with their Chalk Sock so you'll be ready to climb once this package gets delivered to your door.