【Quality stainless steel】all metal structures are made of high quality stainless steel to build such stronger swing. 【Rounded design】 wood corner design with rounded corners,better protection of the hamster’s body. 【Length can be adjusted】You can adjust the length of the swing through the stainless steel ring to meet your needs of different levels. 【Metal bells】Below the buckle with the small metal bells, will be issued a sweet sound when the hamster playing.(A swing only 1 bell) 【Open structure】Hook opening of 5mm, can be snapped on less than 5mm thick structure.