Makes cutting curved crown mouldings easy Can be used with power/manual mitre, radial and table saws Ideal for home carpentry, renovation and repair projects Creates snug 45-degree cuts without tilting the saw blade Measures: 12-1/2 in. x 4 in. x 3 in. Measures approximately: 12-1/2 in. x 4 in. x 3 in. (31 cm x 9.5 cm x 8 cm)