UPZIGS 5 pack 5ml Transparent Twist Pen for Cuticle Oil Applicator, Empty Nail Oil Pen with Brush Tip, Eyelash Growth Liquid Tube, Cosmetic Lip Gloss Container (5x)

Get a old shoe string or these: https://www.amazon.com/gp/product/B08FMRJBJ4/ref=ox_sc_saved_image_4?smid=ATVPDKIKX0DER&th=1 and it makes cleaning the screws a breeze. I also got these to fill with oil to make oiling the rods so much easier and faster and no mess: https://www.amazon.com/dp/B093PGB3SN?ref=ppx_yo2ov_dt_b_fed_asin_title

If you prefer twistable pens, there is a 5 pack of twist pens on Amazon that aren't billed as refillable but the top review has easy instructions to snap the teeth in the gear that makes them only twist one way. I've used all 5 with no leakage and refilled 2 of them so far Twist Pens