This assortment of Tajima green embroidery hoops includes sizes #15, #18, 338x338, and 510x310. These hoops are compatible with Brother and Tajima embroidery machines, featuring an adjusting/center screw, reference markings, and locks for precise placement. Made in Japan, this set of round and rectangular hoops is suitable for various embroidery projects and offers quality used units for crafting intricate designs with ease.