They were made by Voci Armoniche and is supplied with reeds for wheatstone or jeffries accidentals. So you can choose which you want.
Nickel Silver Gong Mirror Gong - Mandala - Gold - ⌀ 28" / 70 cm - Tam Tam Tam Gong
Nickel Silver Gong Mirror Gong - Om Mantra - Gold - ⌀ 28" / 70 cm - Tam Tam Tam Gong
Nickel Silver Gong Mirror Gong - Mandala - Gold - ⌀ 32" / 80 cm - Tam Tam Tam Gong
Nickel Silver Gong - Rainbow - Om Symbol / Lotus - ⌀ 28" / 70 cm - Tam Tam Tam Gong
Nickel Silver Gong - Sun/Moon Phases - Purple - ⌀ 32" / 80 cm - Tam Tam Tam Gong
Nickel Silver Gong - Mirror Gong - Sri Yantra Design ⌀ 28" / 70 cm - Tam Tam Tam Gong