How do I send data from a recyclerview to a fragment

class RecyclerAdapterMain (val product : ArrayList<modelproductmain>)  : RecyclerView.Adapter<recycleradaptermain.viewholder>() {
    class ViewHolder(itemview: View) : RecyclerView.ViewHolder(itemview) {
        val title : TextView = itemview.product_txt
        val price : TextView = itemview.price_product
        val imageproduct : ImageView = itemview.product_image
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {

       val view = LayoutInflater.from(parent.context).inflate(R.layout.product_items , parent , false)

        return ViewHolder(view)
    }

    override fun getItemCount() = product.size

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {

        val products = product[position]

        holder.title.text = products.title
        holder.price.text = products.price.toString()
            }
        }
    }