Vesper V-Ball 1.6 Replacement Part, String, Light Rattan, V-Base, V-Double & V-Tower Models (3 Pack) Replacement part, 3 pk W/String, light rattan, for use with all v-base, v-double, v-base, v-high base & v-tower models Easy to replace when your cat has worn through original Replacement parts available help keep your furniture sturdy and allow them to last for a long time