... design 2.energy-saving 3.Amenity,safety 4.maintenance free Crystal Parallel Glass BlockGlass block details: 1. Specification: 190*190*80 ... . Pattern: Clear, mist, meteor, parallel, crystal parallel, lattice, rhombus, double star, frost bistar, sea wave, water bubble, diamond, oblique line, cycle rhombus ... 10 43*30*16 1.5 12500 pcs 10400 pcs Crystal Parallel Glass Block