This cleverly designed strip can be used for the SAN safety glazing, 3mm horticultural glass and 4mm toughened safety glass. When used on the SAN plastic it will add strength and rigidity to the whole glazing system. Supplied in 24″ (610mm) long sections. The `Z’ section neatly clips onto the leading edge of the glazing material when one face overlaps another. Please remember all glass is dangerous.