Hamster Ball good for all Hamster Breed With plastic sealed upon deliver Sizes: 10 cm - good size for Roborovski Hamster Color Available: Pink, Blue and Yellow 12 cm - good size for Roborovski Hamster, Winterwhite and Campbell and Juvy size Syrian Hamster Color Available: Blue, Pink, Yellow and White Hep Petshop / Hep Hamstery is trusted hamster breeders for almost 8 years :) For more hamster product, kindly open my shopee acct. or direct message me :)