testovaci piny banggood / pouziti ?

[ajtservis]

hezky vikend.
mel bych dotaz ohledne pouziti testovacich pinu/jehel z techto stranek:
https://www.banggood.com/100pcs-PCB-Bare-Board-Spring-Loaded-Test-Probe-Pin-P75-B1-100g-1_02mm-Diameter-p-1002740.html?rmmds=detail-left-hotproducts__4&cur_warehouse=CN
nejak jsem k nim nenasel pouzdra, tak jak se to bezne pouziva.
to se tyhle piny nejak jednorazove pajej, nebo neumim to pouzdro na tom 
webu najit ?
dik za info.
tomik.
jeste jeden odkaz:
https://www.banggood.com/10pcs-Ultra-Pointed-Golden-Flexible-Multimeter-Probe-PCB-Test-Needle-p-960840.html?rmmds=detail-left-hotproducts__8&cur_warehouse=CN