The adapter didn’t work for my Fisher pen.Never received it, so I can’t really give it a review. My fine blue ink was great but bought directly from fisher on Amazon.This refill for my space pen was just "okay" . Not as good as the substandard blue/ black refill. I did love the color! Very unique. But, it seemed like it did not flow as freely as the standard. It was a bit harder to push it into motion (if you know what I mean) ...it certainly was not horrible or anything like that, I mean it was worth the extra effort to get that color on paper. I usually write with BOLD point, so I'm used to the smooth glide I get with the standard SPRB. But this refill was still better than, say, a cheap pen that you may get free at a bank or something. All in all I'd say the color was worth the effort...but I wish it came in BOLD.Love the colorCan't go wrong with fisher ink refills. When you find a Parker pen that you enjoy, go ahead and get these refills and you'll be as spiffy as sunshine on a bleak winter morning.I like to carry around my own pen in my pocket and I like that the Fisher ink can write under any of the conditions I find myself -- I do not routinely deep water dive or space walk.I'm very pleased the color options available and tend to go for bit more unique than basic blue or black. Here's a tip I learned when working in a lawyer's office: sign your originals in colored ink. When they make a photocopy it comes out black anyway.So go ahead, buy the refills and Enjoy effortless, multi-weather writing. Cherish your pen with this long lasting ink.Cheers - iSharThe color is absolutely beautiful. Thrilled with this purchase. I used up the Fisher black refill, which was a great performer (medium). Ordered a green refill, but it was too dark, so I ordered a turquoise and am happy I did!!!Ink is reliable and long lastingA refill for a pen I own.Just what I was looking for! I love my Space pen but love it all the more with the extra ink colour choices I now have. A quality productExcellent colour and genuine Fisher RefilHighly recommendedI like it but it is a bit on the light side in colour.The smoothest ink flow I have ever hadIt arrived when they said it would so I was able to complete the post card I had started the week earlier in Portmeirion. Unfortunately in completing the card, I wrote about Newton Aycliffe where I was visiting and was overcome by the smell of chemicals. I think the chemical smell was from a local factory rather than the smoking habits of the local youths around the Rec. Anyway, the pen works wonderfully and makes my writing look marginally more legible but I can't help thinking I should have used a pencil to finish the card off there and then. My Aunt in Holland thinks Portmeirion sounds better than Newton Aycliffe.