<https://amptec.com/products/accessories/620-series-accessories/op-100/#product>
<http://schema.org/description>
"OP-100 is a hard shell transit case for all of our 620 Series products. Inside is a die-cut foam insert that will allow your 620 Series product to fit snugly, along with two lead sets and a battery charger."
<https://amptec.com/products/accessories/620-series-accessories/op-100/>