DeNA has announced that the Rock-Type Gear Event will take place from July 7th, 2021 at 11:00 p.m. until July 14th, 2021 at 10:59 p.m. in Pokémon Masters EX. Players can get Rock-type gear from event battle rewards or from the Event tab of the Exchange Items menu!

Rock-Type Gear Event

Rock-Type Gear Event under way! You can get Rock-type gear by completing co-op battles! This event is exclusive to co-op battles. You can get Rock-type gear from event battle rewards or from the Event tab of the Exchange Items menu! The more you play together with other players, the more gear you can collect!

Gear

Equipping your team with gear can make your Sync Pairs stronger. You can do this in the Edit Team screen in the Sync Pair menu.
Note: To use gear, you must have completed Interlude 1: Let the Tournament Begin!, which is available after completing Main Story: Chapter 10 in single-player.

New 3★ Gear

In conjunction with this event, the following 3★ Gear will be added.

• 3★ Rock Bandanna
• 3★ Rock Bracelet
• 3★ Rock Pin

3★ Gear can be obtained as event battle rewards or from an exchange in the Event section of the Exchange Items menu. They can also be obtained from the General tab of the Exchange Items menu starting from the following date/time. Date/Time: July 21, 2021 at 11:00 p.m.

Upgrading 3★ Gear

You can use exclusive upgrade items to upgrade 3★ Gear.

3★ Rock Bandanna-Exclusive Upgrade Items

• Rock Scissors

3★ Rock Bracelet-Exclusive Upgrade Items

• Rock Thread

3★ Rock Pin-Exclusive Upgrade Items

• Rock Needle

How to Get 3★ Gear Upgrade Items

3★ Gear upgrade items can be obtained by exchanging 1★–3★ gear. The upgrade items you can get differ based on the gear’s type and category. (Categories include bandannas, bracelets, or pins.)
Example 1: If you exchange a 2★ Rock Bandanna, you’ll receive Rock Scissors.
Example 2: If you exchange a 3★ Rock Bracelet, you’ll receive Rock Thread.

Gear with more ★s, higher levels, or more level caps unlocked will yield more upgrade items.

Date/Time

July 7, 2021 at 11:00 p.m. - July 14, 2021 at 10:59 p.m.

Important

• To participate, you must have completed Main Story Interlude 1: Let the Tournament Begin! in single-player.
• The sync pairs that appear as opponents in battle have different capabilities than those you can actually obtain.
• The number of plays available for Daily Bonus Battle 1 are reset every day. Reset Time: 11:00 p.m.
• When the exchange period for the vouchers obtained in this event ends, leftover vouchers will be converted into coins (10 coins per voucher) and sent to your Present Box.
• You cannot take on this event area with 3 teams comprised of only your own Sync Pairs.
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/Event_3060_2W_3