item name: anti-burst gym ball diameter size:45cm,55cm,65cm,75cm color:pink,green,blue, ... welcomed Item name:Gym balls,also name fitness ball,exercise ball,fitness ball,balance ball,yoga ball,swiss ball;Item size: 40cm,50cm,55cm,65cm,75cm ... ;Accessories: we provide two kinds of pumps as below for customers to choose from.Foot Pump:Hand Pump: 45cm anti-burst Pvc ball