Yes — see the Rescue Figure 8 Descender for a heavier-duty version rated for rescue applications

Weaver Leather 26" Neoprene Top Straps for Climbing Spurs

A screwgate requires the user to manually thread a locking sleeve to secure the gate

Klein Replacement Tree Gaffs — 2-3/4"

We're also including The Tree Climber's Companion book in this kit

PHOSPHO-JET 1 LITER shoulder straps Yes — see the RescueArborjet's PHOSPHO jet is a systemic fungicide and plant resistance activator for the suppression of various plant diseases. **Contains 45. 8% Phosphorous Acid 1 Liter treats 20 trees (10" DBH) Effective for: Sudden Oak Death, Anthracnose, Phytophthora, Black Spot, Scab, Fire Blight in Apple, Root Rot in Avocado and Citrus, Canker Blight and many others