Round Top metal and biodegradable pins have the strength and rigidity to penetrate and fasten erosion control blankets to various surfaces. Round Top Bio-Pins are a safer, more environmentally friendly alternative. They hold more netting strands than a staple and have a pull out strength equal to that of an 8" x 8-gauge staple. The pins will degrade in 10 to 12 months. The Round Top Driver dramatically improves installation efficiencies while reducing labor time and costs.