COMPASS 6IN SPEED BOWCTDI-890, COMPASS 6IN SPEED BOW. Manufactured by C-Thru. This compass is especially ideal for introductory level drawing and drafting. It features a center wheel that allows for fine adjustments and comes with a pack of lead refills.Features of COMPASS 6IN SPEED BOW Model No : CTDI-890UPC : 088359048997Brand : C-ThruCountry of ..