The easy-to-replace powerful blades of the SH30/52 Replacement Head from Philips Norelco helps collect hair in the best cutting position, helping deliver the closest shave ever from a Philips Norelco shaver.Comfort cut shaving heads. Series 3000, 2000, 1000 and S738 Click and Style Replacement Heads for Series 3000, 2000, 1000 and S738 Click and Style 0.83 L  x 3.86 W  x 4.53" H Care: Wipe Clean Country of Origin: Imported