HEATS UP FAST - The Magna Block is exceptionally heat-reflective. This focuses the flame's energy directly onto your workpiece, allowing you to reach soldering temperatures faster while using less fuel from your torch. SUPERIOR HEAT RESISTANCE - Designed for professional jewelry applications, this block safely withstands temperatures up to 1200°F (650°C). Unlike traditional charcoal blocks, it will not crumble, pit, or crack under intense heat, providing a smooth and reliable surface. PIN-ABLE FOR PRECISION ALIGNMENT - The unique fibrous cementitious structure is soft enough to easily accept T-pins, wire, or custom jigs. This allows you to securely lock complex jewelry components in place for precise filigree work, multi-joint soldering, and delicate assembly. NON-ASBESTOS & NON-TOXIC - Work with peace of mind. The Magna Block is 100% non-asbestos and contains no hazardous air pollutants (HAPs). It is a clean-burning, professional-grade alternative to charcoal and ceramic boards that is safer for both the jeweler and the environment. DIMENSIONS - 6 inch by 3 inch by 1.5 inch; 3.7 ounces