Ideal for creating strong and secure joins in furniture, cabinets, trim and special woodworking projects, Has a series of parallel grooves cut along its length providing channels through which excess glue can escape as the dowel is inserted, Relieves the hydraulic pressure that might otherwise split timber when mating pieces are clamped together, Expands when used with water-based glue for extra tight join, Made of straight-grained solid hardwood; fluted for easy insertion