?A push block that really grips. The smart choice for safety.FEATURES:Auto-retracting heel technology hooks the tail-end of your board.Proprietary Green GRR-RIP for extreme hold.90-degree flip guide for vertical footing on band saws and router tables.Ergonomic handle exerts directional pressure against the fence.Optional mounts for Deflector/Connector shield plate for additional protection against chip debris.Auto-retracting heel technology hooks the tail-end of your board.Proprietary Green GRR-RIP for extreme hold.