Tray for Style-U Bobbins (Cobra Class 20 and 26, Juki LU563, etc)
Each tray will hold 12 U-Style bobbins (on average they are 28mm in diameter and up to 11.2mm in height, although the height can vary from manufacturer to manufacturer). The bobbins in the picture are only for display purposes - no bobbins are included with your purchase.
The unique feature is the v-slot which secures the thread and keeps the partially or fully wound bobbins from unraveling (insert bobbin with the thread coming up from the bottom and pull thread down into the slot). See list of sewing machines that use this style of bobbin below.
A dust cover lid is available as an option (it just sits on top and is not connected to the tray - see picture).
Here's a partial list of machines using the U-Style bobbins:
Cobra Class 20 and 26
Brother : B836, B837, B872, B875, B882
Consew : 125, 327RB, 328RB
Juki : LU-563, LU-563-3, LU-1508, LU-1510, LU-1560, LU-1565, LUH-521, LUH-526, LH class Large Hook Machines
Mitsubishi : DN-260-22, DN-262, DN-265-22, DN-267, DN-275-20, DU-100-22, DU-102, DU-105-22, DU-107, DU-120-22, DU-122, DU-125-22, LU2-400, LU2-410
Nakajima : 241L, 480L, 481L, 482L
Nitaka : B872, B875, B935, B1685, B1885
Seiko : LPW-27BLK, LPW-28BLK, LSW-26BL, LSW-27BLC, LSW-27BLK, LSW-28BLC, LSW-28BLK
Singer : 211G351, 211G357, 211G358, 211G465, 211G466, 211G557, 211G558, 211G566, 211G765, 211G766, 211U566
SunStar : KM-560, KM-740, KM2-740, KM2-740BL
Taking : TK-872, TK-875
Yakumo : 481L, 482L
Trays for Style-33 bobbins and Style-M bobbins are available in separate listings.