The Leki Corklite AERGON Trekking Poles feature the AERGON Cor-Tec grip that has an edgeless outer shape which offers a variety of comfortable, secure gripping options. The Croklite AERGON also features Leki's Speed Lock System which uses a unique design features to achieve the high locking force and adjustment security that is up to 10 times stronger than other external locks. The red locking lever is a readily identifiable feature of LEKI's new super-fast adjustment technology. The SpeedLock mechanism offers the highest locking force of any external adjustment system on the market, far exceeding the TUV standard. The simple and easy to use mechanism adjusts quickly and securely even when wearing gloves or when used in rain, ice or snow. Fast, Easy and Reliable.