The ProClimb Difference Climb with confidence! ProClimb builds gear that you can trust. We believe one good test is better than a thousand expert opinions, that's why we test our products to ensure reliability of every ProClimb product. Every piece of ProClimb climbing gear is tested (not just sampled), 100% factory and proof tested! In addition, we use independent laboratories, such as UL, to certify our products. We also break test samples from every single production lot upon receipt.With over 40 years of experience serving professional climbers, you can count on our experience and knowledgeable team. Arborist Flip Line Kit high visibility flip line is constructed with a 16-strand bright neon orange polyester tightly braided over a flexible heavy duty 1/4” diameter 7 X 19 galvanized steel wire core aircraft cable. The New Standard in Arborist Flip Lines This set includes all components of our standard All-In-One Flip Line Kit but featuring our Better Grab Rope Grab - USR-300-MRG. The Better Grab Rope Grab has a(n): Stainless steel coreErgonomic rubberized coverAnodized aluminum camLarge thumb rest for precise control PREMIUM QUALITY Made of steel core, its strong and rigid construction allows it to work well with rope grab adjuster devices and prusik lines, while its tough polyester overwrap provides good grip and better handling than polyurethane, making it a sturdy, long-lasting cord. MEETS STRINGENT WORK STANDARDS Marked with approvals for work environments where meeting regulations and staying safe are high priorities. See product markings & labels for specific information. BUILT-TO-LAST The 1/4” steel aircraft-grade cable forms an eye at each end over a steel thimble. The eyes are formed by crimping with an improved bracket which helps to extend the working life of the flipline.