Not sold at retail, but you can browse Callaway
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Players cited with this
Sergio GarciaPRESS“The Spaniard began using the company's gear at the DP World Tour Championship in Dubai where he was spotted with GBB Epic woods , Apex MB irons, Mack Daddy Prototype wedges and an Odyssey Toulon putter.”
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Branden GracePRESS“Wedges: Callaway Mack Daddy Prototype (52˚, 56˚, 60˚), Shafts Project X 6.5”
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Players who use this also use
Callaway X Forged 13
also used by 1 of them

Ping Glide 3.0
also used by 1 of them

TaylorMade Milled Grind wedges
also used by 1 of them

TaylorMade Tour Preferred EF Tour Grind
also used by 1 of them

TaylorMade Tour Preferred EF wedges
also used by 1 of them

Titleist Vokey SM8
also used by 1 of them
Photo credits
- Sergio Garcia — AJGA, CC BY 3.0
- Branden Grace — Hanson K Joseph, CC BY-SA 4.0