Check the listing for details. 200 MICRO K'NEX Black Rods 0.5" Small Mini Tiny Replacement Parts KNEX. Color: Clear, Condition: Used. Listed at 11.95 USD. Lot of 200 Micro K'NEX Small Black 0.56" Rods These are the Micro K'NEX rods. Smaller/thinner than standard K'NEX, common on many of the K'NEX Roller Coaster sets. Main photo shows them compared to the larger K'nex Black & Green rods for comparison (not included). Excellent clean condition. These pieces measure just over half an inch in length (~.56"). You will receive 200+ black rods with each lot. Buy from us with confidence! I am a lifelong avid K'NEX builder. I know the parts well and have a huge selection. Please feel free to contact us with any questions, or if we can be of any help finding a specific part for you. I would be happy to put together custom lots of any part and quantity that we have available. Thanks for looking!