The Yamaha PCY90AT is a large 10-inch cymbal pad with attachment to rack system. Updated for more natural feel and quietness, you will notice the difference from other cymbals when playing legato. In addition, when you play this cymbal pad with the DTX400 series kits you can play both edge and cup sound by changing the dynamics of your strike. You cannot attach the PCY90AT cymbal attachment to a HEXRACK (e.g. HXR4LD). Before you purchase a pad, refer to the pad compatibility table to make sure that you can connect the pad to your drum trigger module (tone generator).