The DW SM904 Cymbal Stacker allows for an additional cymbal to be mounted on an existing cymbal stand.
DW SM904 Cymbal Stacker features:
DW Cymbal Stacker for the Attachment of Additional Cymbals
Size is 4”
Straight Design
Manufacturer information
Roland Corporation Nakagawa, Hosoe-cho, Hamana-ku, Hamamatsu, Shizuoka 2036-1 431-1304 Hamamatsu Japan https://www.dwdrums.com/warranty/ EU economic operator Roland Central Europe N.V. ENA 23 Zone 1 nr. 1620 Klaus-Michael Kuehnelaan 13 2440 Geel Belgium https://www.roland.com/backstage/login?redirect_uri=%2Fsupport#product_support