Thank you for viewing. This is a substitute for the balls (coal) that can be used with Tomica and Plarail. Although it is not a genuine product, the size is almost the same. - 30 balls Immediately after purchase, I used gloves and put them in a small envelope. I have confirmed that it can be used without any problems with the "Go Round! Thomas and Merlin's Coal Hopper Set". [Plarail Series] "Plarail Loading and Unloading Freight Train" "Go Round! Thomas and Merlin's Coal Hopper Set" "Plarail Playable Engine! Big Thomas" "Thomas the Tank Engine Steam Shoo! Big Thomas" "Wilson's Stone Quarry Loading and Unloading Set" [Big Loader Series] "Working Car Big Loader" "Thomas the Tank Engine Big Loader Harbor Cranky" "Thomas the Tank Engine Big Loader Terence's Quarry" "Thomas's Big Loader Wide Set" "Thomas the Tank Engine and Harold's Big Loader Set" "Big Loader Thomas the Tank Engine Loading and Unloading Set Here and There" [Tomica Series] "Tomica Action Construction Site" "Tomica Town Moving! Loading and Unloading Construction Site" "Tomica Town Build City Power Crane Construction Site" "Tomica Site Transformation Mega Ton Dump" "Tomica Bull Station" "Tomica Bull Road" "Tomica Bull Conveyor" "Tomica Construction Value Set" "Tomica Town Play Charge Series Construction Site Stepping Conveyor" "Tomica Town Play Charge Series Construction Site Tower Crane" Plarail Coal