Features: - Used widely for Geo-caching, security Key Rock - Turn the rock over and un-clip the safety cage, to hide away car and house keys - Ideal for keeping a spare set hidden away in the garden - Key Rocks vary slightly in size Specifications: - Size (approx): 8.5 x 3.8 x 5.5 (L x W x H) - Color: as pictures shown - Material: Synthetic resin - Material: resin - Weight: 158g Package Included: 1 x Security Key Rock