● Material:basalt.
● E:Elliptic-shaped size: approx 120x80x30mm,weight:approx 580g.
● F:Round-shaped size: approx Φ60x20mm,weight:approx 130g.
● G:Elliptic-shaped size: approx 60x50x20mm,weight:approx 120g.
● H:Rhombus-shaped size: approx 90x30x20mm, weight:approx 110g.
● I:Round-shaped size: approx Φ45x15mm,weight:approx 60g.
