Moc Technical Part Rubber Stopper Building Block Brick Thread Attachment For Caterpillar Track Compatible With Lego Toy Noc24375 - Model Building Kits - AliExpress
LEGO part 24375 - Black Technic, Link Tread Attachment, Single, Rubber at BrickScout
Amazon.com: GUSENG 50Pc Mini 24375 Building Block Technic Part Rubber Stopper Chain Link Grip Caterpillar Track Attachmen Brick Toy : Toys & Games