These very useful thread holders are ideal for keeping sewing reels tidy and out of the way and double up as a creative and interesting feature in any room. Perfect for bobbins too. Horizontal vertical transformer So not as efficient space-wise, but way more efficient for actually using it. If we need to know whether there's any cerulean-off-turquoise thread, that's something you can see in less than 5 seconds. I made versions for the 3 bobbin sizes I found in the box. They're something like 20mm(0.78inches), 27mm (1.06inches) and 41mm(1.61inches). size 27x15cm(10.6x5.9inches) 72 pieces are inserted into 20mm. bobbins with threads with a diameter of 20mm. 30 pieces are inserted into 27mm. bobbins with threads with a diameter of 27mm and 41mm, 20pcs of bobbins with threads with a diameter of 41mm are inserted. Disassembled. Easy to assemble. Material revised wood 3mm Please be aware that each item is handmade, making each one unique and could differ slightly to the image. Shipping: All items are shipped via priority airmail with the tracking number. Usually, I send order the next day if it's not Sunday or National Holiday day. Shipping usually takes: to 2-5 weeks Please contact me if you have any questions before purchasing. I will answer your questions with joy!