Just like Deep Soft Weight, this sinket is a Tungsten-based alternative to toxic lead-based products. With a brass color, it is perfect for making your own bead head nymphs right on-stream. It is both biodegradable and reusable. FEATURES: Tungsten putty weight Non-toxic Non-lead Reusable Brass color Can be used as temporary bead head for nymphs DIRECTIONS FOR USE: Pinch off desired amount from container. Apply to leader in the shape of a football at desired location. Dip in water to harden. Remove or change the size when needed.