Is this flipline suitable for professional arborists

From the author of the bestselling Tree Climber's Companion comes To Fell A Tree — a comprehensive

What is the front snap used for

SKU: HS-391-36

Bartlett has been making professional quality pole saws for well over 70 years

DMM IMPACT BLOCK UP TO 5/8" ROPE come along Is this flipline suitable forThe Small Impact Block is small by name, small by nature (relatively speaking) yet still big in strength. With a massive Minimum Breaking Strength (MBS) of 200kN and a Working Load Limit (WLL) of 40kN, it is incredibly strong, yet can almost be carried around on a harness. Max Rope Diameter: up to 16mm (5 8" Rope) Dimensions: 7"x 4"x 3"