These very useful thread holders are ideal for keeping sewing reels tidy & out of the way & double up as a creative & interesting feature in any room. Perfect for bobbins too. 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) & 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 & 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 & 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! Bobbin Rack Sewing Thread Organizer. Organizer, Wood Wall Mount Rack, Wooden Holder, For