Known as the "manipulation bag," the FTC Pulsar throw weight is dedicated to manipulating the throwline in order to optimize the rope set up in the tree.

The metallic core and a polymer shell construction of this throw weight allows for a very long lifespan. 

Core	galvanised steel
Shell	polymer
Ring	stainless steel wire (folded and inserted after injection moulding)
Ring strength	250 kg (551.2 lb)
Weight	500 g (18 oz)
Dimensions	11.5 cm high (4.5 in) / 5 cm diameter (2 in)