It looks like you’re referring to a specific fly fishing product—likely a twin pack of salmon flies, including patterns like Red Allys and Shrimps in sizes 6–10 (with a product code or SKU 152). Here’s a breakdown of what this might entail:

Product Details (Hypothetical Example):
– Patterns Included:
– Red Ally (a classic salmon fly with red/orange hues, often tied with bucktail or synthetic materials).
– Shrimp/Prawn (a suggestive pattern mimicking crustaceans, common for Atlantic or Pacific salmon).
– Hook Size: 6 to 10 (ideal for medium to smaller salmon/grilse or low-water conditions).
– Pack Type: Twin pack (possibly 2 flies per pack or 2 different patterns bundled together).
– Use Case: Designed for fly fishing for salmon in rivers, especially effective in clear water or when fish are keying in on shrimp-like prey.

Where to Find It:

Fly Fishing Salmon Flies Red Allys Shrimps Size 6-10 Twin Pack 6 #152

If this is a real product, check:
– Fly fishing retailers (e.g., U.K. shops like Fishingmegastore, Sportfish, or FlyFish Europe).
– Online marketplaces (eBay, Amazon, or specialty sites like SalmonFlies.com).
– Manufacturer catalogs (if 152 is a SKU, search for the brand name + code).

Tying Your Own?
If you’re a fly tyer, these patterns are achievable with:
– Red Ally: Red bucktail, flash, and silver tinsel.
– Shrimp: Orange/red dubbing, rubber legs, and copper wire.

Let me know if you need help locating this exact product or alternatives!