New Smith & Wesson S&W N Frame Square Butt Grips Checkered Finger Groove Open Back Hardwood Wood Handmade #Nsw23 Condition: New Material: Hard wood 1 Set = Right and Left side of grips with Screws Fit for Model: 20, 21, 23, 24, 25*, 26, 27, 28, 29*, 57, 58, 520*, 610*, 624, .44 Classic Hunter There is both a round butt and square butt version for this model. So please determine whether your pistol is round or square butt.