Produces custom and standard O-RINGS of almost any size, with over 300 sizes available. Capable of forming very large O-RINGS for special applications. Each complete kit includes a cutting blade, cutting and splicing jig, adhesive, and O-RING cord stock, with 7' of each size in inch series or 1m of each size in metric series: 1.5 to 8.4mm. BUNA-N 70 cord stock allows use in various applications.