The integrated roll-up slide quickly dispatches snow even on low pitch roofs. Choose model 500 with 1.5 inch diameter wheels for most asphalt shingle roofs or choose model 750 with 3 inch wheels for shake, tile, metal and specialty roofs with more dimensional characteristics. The handle can be extended in 4 feet increments with the Handle Extension Kit (sold as an accessory). Designed and battle tested in Minnesota, Avalanche makes quick work of heavy wet snow. Avalanche Snow Rake is perfect complement and also has wheels to protect your roof.