■Pilot FriXion Ball Knock Zone
Rubber Model (550 yen)
Amazon: amzn.to/45tTpCU
Rakuten: hb.afl.rakuten.co.jp/ichiba/1cfb6500.5826a933.1cfb…
Wood Model (2200 yen)
Amazon: amzn.to/3ZMWexr
Rakuten: hb.afl.rakuten.co.jp/hgc/1aef0812.3d192b68.1aef081…
Marble Resin Model (3300 yen)
Amazon: amzn.to/3LQqlyc
Rakuten: hb.afl.rakuten.co.jp/hgc/1aef0812.3d192b68.1aef081…