Magnets Universal Latch can lift up to 50 lb load. The powerful latch magnet set is made from durable red plastic casing with four elongated holes that allow multidirectional and adjustable mounting. The heavy-duty door closure latch comes with 1/8" thick steel strike plate with countersunk holes to accommodate flat head screws. Magnets are extremely durable and useful in carrying out many functions. They can be used extensively without worrying about losing their magnetic properties. Their quality is high grade and their magnetic forces are relatively stronger