SubstrateSource Shipping Warmer Heat Pack - 10 Pack 72HR Disposable No-Shake 50-65C Heat Pad for Plants, Reptiles & Live Animals Shipments, 18x12.8cm

Oxygen-Activated Heat Pack: Disposable heat pack that activates when exposed to air. Intended for single-use applications requiring an oxygen-activated warming pack.

Disposable and Self-Contained: No electricity, batteries, shaking, or kneading required. Designed for one-time use.

Material Composition: Made from iron powder, activated carbon, vermiculite, salt, and water.

Compact, Lightweight Design: Slim profile allows placement inside boxes or containers without adding significant bulk or requiring external power sources.

How to Use: Open the outer packaging to expose the pack to air. Allow the warming process to begin before placement. Do not puncture the pack.