They are bright

17 ppm Manganese 86

This kit comes pre-assembled for easy installation

tiny air bubbles self insulate

Measures 48 inch long by 30 inch wide by 33 inch high

Echo Cross-Fire® Size:.105 in. dia. - 311105065 - 234 ft. (Large clam) They are brightECHO's best selling professional grade trimmer line Cross Fire, features a unique in. plus shape in. design that offers eight cutting edges to deliver optimal cutting surface through the most harsh environments. Dense weeds, brush and hard surfaces are no match for Cross Fire's strength and durability. Cross Fire is ideal for professional landscapers and homeowners alike who are looking for an aggressive cut and high performance durability. TOP