Based on this product's specifications, here are some alternatives and similar models
Pen MemoBe Elegance on a chain — MemoBe MD100-03
Summary description:
MemoBe Elegance is a pen on a chain designed for public and retail points where a writing instrument must remain attached. This MemoBe model MD100-03 features a fixed chain mounting, standard ballpoint writing tip and compact barrel suited for signing receipts, forms and documents. Practical for counters, offices, banks and service desks.